■
EPDT-193d
■
4
6. Nominal Size Selection Table
6.1 For air (at 20˚C)
Capacity <Pressure vessel structure standard>
[kg/h]
Nominal
size
Blowout
area
[mm
2
]
Set pressure [MPa]
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
15A
20.1
25
33
48
65
81
98
114
131
147
164
181
20A
34.6
44
57
83
111
140
169
197
226
254
283
311
25A
53.0
67
87
127
171
215
258
302
346
390
433
477
32A
93.3
113
147
214
288
362
435
509
582
656
730
803
40A
135.2
169
221
321
431
542
652
762
872
982
1093
1203
50A
208.2
262
341
496
666
836
1006
1176
1346
1516
1687
1857
6.2 For water (at 20˚C, accumulation: 25%)
Capacity <Yoshitake standard>
[m
3
/h]
Nominal
size
Blowout
area
[mm
2
]
Set pressure [MPa]
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
15A
20.1
0.4
0.5
0.9
1.1
1.3
1.5
1.6
1.8
1.9
2.0
2.1
20A
34.6
0.6
0.9
1.6
2.0
2.3
2.6
2.8
3.1
3.3
3.5
3.7
25A
53.0
1.0
1.5
2.5
3.1
3.6
4.0
4.4
4.7
5.1
5.4
5.7
32A
93.3
1.8
2.6
4.5
5.5
6.3
7.1
7.8
8.4
9.0
9.5
10.0
40A
135.2
2.7
3.8
6.5
7.9
9.2
10.3
11.3
12.2
13.0
13.8
14.6
50A
208.2
4.1
5.9
10.0
12.3
14.2
15.9
17.4
18.8
20.1
21.3
22.4
*1: [Example] When the set pressure of 1.0 MPa, and the valve size is 50A
The capacity is 22.4 m
3
/h, when the inlet pressure reaches 1.25 MPa (accumulation becomes
25%) after the fluid pressure reaches the set pressure of 1.0 MPa.
